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JEE Main 2022 Physics question

PhysicsGravitationJEE Main 2022

A body is projected vertically upwards from the surface of earth with a velocity equal to one third of escape velocity. The maximum height attained by the body will be: (Take radius of earth = 6400 km and g = 10 )

Answer: (1)

Solution

By conservation of energy, −GMm/R + = −GMm/(R + h), with = 2GM/R:

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Question ID VK-025021